NCAA Contour Head Cover - Pack of 3 NCAA Team: University Of Southern California Set contains 3 sock headcovers with sleek contour shape numbered 1, 3, and X. The #1 fits all oversized drivers. Set contains 3 sock headcovers with sleek contour shape numbered 1, 3, and X. The #1 fits all oversized drivers. Weight : 2.00 lbs.